28140210

素因数分解:

$2^1\times 3^4\times 5^1\times 7^2\times {\mathrm{709}}^1$

素因数の和:742

約数の個数: 120

約数和(自身を含む): 88143660

約数和(自身を除く): 60003450

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 81, 90, 98, 105, 126, 135, 147, 162, 189, 210, 245, 270, 294, 315, 378, 405, 441, 490, 567, 630, 709, 735, 810, 882, 945, 1134, 1323, 1418, 1470, 1890, 2127, 2205, 2646, 2835, 3545, 3969, 4254, 4410, 4963, 5670, 6381, 6615, 7090, 7938, 9926, 10635, 12762, 13230, 14889, 19143, 19845, 21270, 24815, 29778, 31905, 34741, 38286, 39690, 44667, 49630, 57429, 63810, 69482, 74445, 89334, 95715, 104223, 114858, 134001, 148890, 173705, 191430, 208446, 223335, 268002, 287145, 312669, 347410, 402003, 446670, 521115, 574290, 625338, 670005, 804006, 938007, 1042230, 1340010, 1563345, 1876014, 2010015, 2814021, 3126690, 4020030, 4690035, 5628042, 9380070, 14070105, 28140210]

約数ペア:

[(1, 28140210), (2, 14070105), (3, 9380070), (5, 5628042), (6, 4690035), (7, 4020030), (9, 3126690), (10, 2814021), (14, 2010015), (15, 1876014), (18, 1563345), (21, 1340010), (27, 1042230), (30, 938007), (35, 804006), (42, 670005), (45, 625338), (49, 574290), (54, 521115), (63, 446670), (70, 402003), (81, 347410), (90, 312669), (98, 287145), (105, 268002), (126, 223335), (135, 208446), (147, 191430), (162, 173705), (189, 148890), (210, 134001), (245, 114858), (270, 104223), (294, 95715), (315, 89334), (378, 74445), (405, 69482), (441, 63810), (490, 57429), (567, 49630), (630, 44667), (709, 39690), (735, 38286), (810, 34741), (882, 31905), (945, 29778), (1134, 24815), (1323, 21270), (1418, 19845), (1470, 19143), (1890, 14889), (2127, 13230), (2205, 12762), (2646, 10635), (2835, 9926), (3545, 7938), (3969, 7090), (4254, 6615), (4410, 6381), (4963, 5670)]